| 单词 | auger effect |
| 释义 | > as lemmasAuger effect Auger effect n. an effect whereby the energy released by an electron moving to a lower energy level in an atom causes an electron from a higher energy level to be ejected.This effect is typically produced by bombardment with high energy electrons or X-rays, some of which collide with electrons in the interior shells and cause them to be knocked out of the atom. This creates a vacancy which is then filled by an electron from a higher energy level, causing the release of energy necessary to eject an electron of a yet higher energy level.The energy of the ejected electrons can be measured spectroscopically, giving information about the ejecting atoms. The effect is also used as a source of electrons for radiation therapy.extracted from Augern.3< as lemmas |
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